Colony High (Data source)
Source data for Colony High
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 11 | 1953058 | 2574 | - | 2628 | = | -54 | * | (464 | / | 464) | = | -54.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Colony High | -54 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 11 | 60161 | 2569 | - | 2628 | = | -59 | * | (473 | / | 473) | = | -59.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Colony High | -59 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 11 | 61905 | 2572 | - | 2628 | = | -56 | * | (417 | / | 417) | = | -56.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Colony High | -56 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 11 | 61995 | 2585 | - | 2628 | = | -43 | * | (500 | / | 500) | = | -43.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Colony High | -43 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 11 | 62255 | 2586 | - | 2628 | = | -42 | * | (498 | / | 498) | = | -42.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Colony High | -42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -54 | -59 | -56 | -43 | -42 | -254.0 | -50.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -29.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.8
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 62% | 73% | 71% | 74% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Chaffey Joint Union High school district | County of San Bernardino
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Colony High math proficiency
Zero+ meets standard.
49% less $meal
55% less $meal
52% less $meal
58% less $meal
57% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.
High Schools (Public) schools in Chaffey Joint Union High (8)
| Alta Loma High | Chaffey High | Colony High |
| Etiwanda High | Los Osos High | Montclair High |
| Ontario High | Rancho Cucamonga High |